Steam-plow



iii-tithe Starts 'rnoMie-s 1i. inserts r, o

STEAM- SPEGIFIGATION ionizing part of Letters 1* TYRONE, ARKANSAS.

PLOW.

Patent No. 226,921, dated April 27, 1880.

Application tiled March 16, 1880. (No model.)

To all whom it may concern: v

Be it known that I, if-nouns ii. Momm of Tyrone, in the county of Grossand State of Arkansas, have illVOlllUtl certain Improve ments in SteamRotary Plows, oi which the ibilowing is a speciiication.-

This invention relates to certain improvements in steam-plows; and itconsists in the general construction oi. the whole machine; also, in theform of the plow teeth or points, in the combination of the apparatusfor raising and .iowerinc' the plow-cylinder, and the means whereby thecylinder is sustained in the frame, all or which will be moreparticularly herein" i'ter described.

Figure l a side elevation of the machine. hi L is a plan View. Figs. 3,i, and 5 are details of the sm'ei-al parts of the plow-cylin- (101' andlif'i'ing lcvcrs.

The ii unw which supports the whole apparatus, nsn. y made of rolledwrought-iron of siniicicnt width and thickness, having a ihingc on eachoil on the ontsid'es of the frame and put together snbsta'mtially withiron rods or bolts.

The main shnit 15 is stationary. The intermediate shaft, (,1, is alsostationary, and they are both turned oil", and apiece, a, is bored outand iittrd on the ends 01; said shafts, with anges extending on eitherside and bolted to the Hang; .s on the frame A, to serve as bearingsorjonrnals for the shafts B and (l.

The frame is bent inwardly in front until the two side bars come nearlytogether at the frontend at A, between which a piece of iron or wood, A,is bolted. They may also be arched npnard to allow the front wheels topass'nnderin making short turns. The other or rear ends of the sideframes are turned up, as at 21 to support the shaft 1), for hoisting orlowering the plow-cylinder P.

There are two iron bars, a a, fastened on the inside, which extendacross the bottom of the frame A, on which the water-tank D and theplatform I) are supported.

The cylinder 1 is composed of 'a number of wheels or centers of theproper diameter, each one being wide enough on the periphery to allowtwo rows of teeth or plow-points to be iastened in it, and it is made ofcast or malleable iron, having slots or holes cast in t for theinsertion of the teeth 12. Therims of these wheels must be wide and deepenough to support the said teeth, having a semicircular space, 12', oneach side thereof, opposite each plow point or tooth, to admit of aset-screw, p", by which the teeth will be more securely fastened. Thesewheels or'eenters are bored out and fitted on and keyed to shai'tl, thekey-seats being so arranged, if desired, that the wheels may befastenedon the shaft with the plow-points running in spiral or parallellines with the shaft, and the plow-points must be three or more inchesapart. Each wheel is to have two rows of teeth in it, around the .same.-w ithfrom sixto thirtyrows therein andr the plow-points are to be soarranged that those in every alternate row, as the cylinder revolves,will pass directly in the middle of the space between the teeth in thepreceding row, and thus break and pulverize all of the ground.

' The levers E, in which the cylinder-shaft is sustained and revolves,are of wrought or malleable iron or of steel, and large enough to admitof the shaft 0 passing. through their ends, and on which shaft 0 theyare hinged, and they have a boss on each side, through whichis anorifice for the ends of the'cylindershaft P. At the outer ends there aresegments F F, with cogs to mesh with the cogs of'pinion-wheels F F onthe transverse shaft '1), supported in upturned part of frame A, bywhich the segments are raised or lowered, and consequently lifting orlowering the cylinder P, which revolves in the lovers E E.

Behind each pinion F F is a beveled wheel,

F F, which meshes with a similar wheel. 'F F, on the ends of the slopingshafts H H, having similar beveled wheel-s h h at their upper ends,meshing-with beveled wheels on bearings of the shaft (3 to the top' ofthe upturned end of frame A. These plates L L are the two ends ofa-transverse shaft, It, sup- The shape of the plow points or teeth isas.

follows: From the point Where they emerge from the surface of the wheelor center they are set back'or bent to an angle of from a twelfth tosixth of the-circumference formed by their extreme outward points,- andfrom four to sir inches from the outer endthey'must be bent forwardtoan'angle of about forty five'd'eg're'es, and grad uallytapered to asharp point. The object in bending them backward is to assist inclearing the points of all dirt, trash, &c., and the points are bentforward, that they'may enter the ground early. The plow-points arefastened in the'i'vheels or centers by-a key on the front edge, which ismade secure by a set-screw inthe apertures in the wheels, heretoforedescribed. The keys have heads formed on them to be readily removedthereby.

, "lhe'machinc is placedpn'fo'ur wheels, 0 O O 0, of suitablediameters,and'shonld be wide on the tread to support the heavy weight on softground. The main shaftB must be bent to support the boiler M. Theengine-cylinders X X are fastened to the upper part of the boiler M. Themain driving-wheels 0 O are sup-' cylinder is connected to thepiston-rod in the usnal'mamier, and the crankshaft O is driven iron: thecylinders X X, and thedriving-pinions on the ends of crank-shaft O meshwith the cogs inside of the rim oft-he driving-wheels O "and props!-them fin-ward. wheels N N, which are lixed on the hnbsoi' wheels 0 0and revolve with them, work into the pinionsc e on shaft (,2. There arealso cog-wheels G on shaft 0, which mesh with pinionsc c on the ends ofshaft P of the plow-eylinder. When motion is communicated to thecrank-shaft (J, and the frame is moved ahead at the same time by thetrain of wheels just described above, rapid motion is communicated tothe plow-cylinder, and the ground thoroughly pulverized by the rotaryaction of the teeth or plow-points, and the depth to which they are tobe driven is governed by the apparatus consistingof the shaft R,supported on the watcr-tank,- the beveled gearing at its two endsoperating'upon the in-.

clined shafts H H, which operate by beveled gearing at their lower endsupon the transverse shaft I), on which are pinions F F, which operateupon the segment-racks F on the ends ofthe-levers E E, which sustain theshaft of the plow-cylinder P. These movements are under the control ofthe driver by means of a hand-wheel, Gr. Near his band is also anotherhand-wheel, It, which is on the top ofa vertical rod, r, at the bottomof which is a cogged wheel, 1', which works in a segment-rack on theinner end of the frame, on which is the axle of the front wheels, 0 0,so that the driver can control the direction of the forward wheels forsteering the plow in any direction.

- I claim l. The steam rotary plowing-machine consisting' of the frameA, the driving and gear wheels, whereby the plow-cylinder is rotated,the means fbr operating thelevers E E, which sustain the plow cylinder,consisting of the transverse shafts It and b, with their beveled gears,theside shafts, H H, the pinions F F, and segments F F, all combinedsubstantially as and for the purpose described.

2. The teeth or plow-points bent backward from the centers, and havingtheir points hooked, substantially as shown, and for the purposedescribed.

3. The levers E E, pivoted on the shaft (J, having at their endssegment-racks F, in conr bination with the cylinder P and pinion F, asshown and described.

4. The combination of the shafts R H l1 0, with their connecting beveledgears, the pinioiis F 1*", and segment-racks F F,guide-1: lates L L, andcylinder 1, substantially as and forv the purpose described. p, t

' THOMAS "H; MCGRAY.

Witnesses: i

W n. M. IRELAND, LUTHER H.1nm.

